Lincoln Park Zoo

Lincoln Park Zoo sits right in the middle of Chicago, free to enter every single day of the year, which makes it one of the more remarkable urban wildlife spaces in North America.

At just 11 hectares, it is compact enough to cover in half a day, yet densely packed — the pathways wind between the lake, the formal gardens, and a skyline that keeps reminding you this is very much a city zoo. That contrast, wild animals against downtown towers, gives the place an odd, stirring quality that larger out-of-town parks rarely manage.

The Regenstein Center for African Apes is the standout exhibit, housing western lowland gorillas in a considered indoor-outdoor environment. The zoo participates in Species Survival Plan breeding programmes, so there is genuine conservation weight behind what you are watching.

The Kovler Lion House retains its 1912 bones but has been updated, and the Farm-in-the-Zoo is genuinely well done — children can watch milking demonstrations and get close to draught horses and dairy cattle in a way that feels educational rather than performative.

Because admission is free, weekend crowds can be punishing, particularly around the Polar Bear and Arctic Animal exhibit and anywhere near the penguin feeding times (check the daily schedule board at the main gate on Fullerton Avenue). The zoo is almost entirely flat and pushchair-friendly, though shade is limited in the open central sections during summer afternoons.

Take the Red Line to Fullerton and walk eight minutes through the park; parking nearby is expensive and scarce.

Weekday mornings in spring or autumn give you the animals at their most active and the paths at their most walkable — bring layers, because the lakefront wind ignores the season.